both president obama and governor romney have said they will prevent iran from getting a nuclear weapon, even if that means military action. last week former defense secretary bob gates said a strike on iran's facilities would not work, and quote, could prove catastrophic, haunting us for generations. can the two of you be absolutely clear and specific to the american people how effective would a military strike be. congressman ryan. >> we cannot allow iran to gain a nuclear weapons capability. now let's take a look at where we've come from. when barack obama was elected, they had enough material, nuclear material to make one bomb. now they have enough for five. they're racing toward a nuclear weapon. they're four years closer to a nuclear weapons capable. we've had four different sanctions, three from the bush administration, one here. and the only reason we got it is because russia watered it down and prevented the sanctions from hitting the central bank. mitt romney proposed these sanctions in 2007, in congress i have been fighting for sanctions since 2009. the administration was blo